An insert intended to be attached to an ultrasonic dental scaling/debridement system handpiece, to transmit ultrasonic energy (e.g., 25 kHz/30 kHz) from a generator to the oral cavity for the removal of accretions from tooth surfaces during dental cleaning or periodontal therapy; it is not intended for endodontic use. This device vibrates at a high frequency to provide the scaling effect. Water or a rinsing solution (e.g., chlorhexidine) is intended to be fed through the handpiece/tip assembly to assist in the process. This device is available in a variety of designs and tip shapes. This is a reusable device.